====== NTP ======

===== ArchLinux =====

<code bash>
timedatectl set-ntp true

timedatectl status
</code>

Change ntp server:

Edit ''/etc/systemd/timesyncd.conf'', add

<code ini>
[Time]
NTP=cn.ntp.org.cn
</code>

===== Reference =====

  * https://wiki.archlinux.org/index.php/Systemd-timesyncd
  * http://www.ntp.org.cn/index.php